A spring compressor is among the most infamous tools available to home auto mechanics. Its job and operation are straightforward: It just squeezes a spring so that you can remove or install it from a ...

We recently discovered that AutoZonePro sells tools. Not the cheap disposable kind but the worthy keep-forever kind. The trick is to thumb-scroll the Tool & Equipment Quarterly at AutoZonePro.com then ...

We recently discovered that AutoZonePro sells tools. Not the cheap disposable kind but the worthy keep-forever kind. The trick is to thumb-scroll the Tool & Equipment Quarterly at AutoZonePro.com then ...

There was once a time when Desmodromic valve technology was cutting edge and a necessary competitive advantage for Ducati in racing. The Desmo head doesn't use a valve spring to return the valve to ...

A STUDY of the influence of vibration on valve-springs reveals two possible ways in which a valve-spring can vibrate: First, when the frequency of the forced vibration is low, the force tending to ...